155451136 has 36 divisors (see below), whose sum is σ = 321010200. Its totient is φ = 75041792.

The previous prime is 155451083. The next prime is 155451151. The reversal of 155451136 is 631154551.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 155451098 and 155451107.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3046 + ... + 17893.

It is an arithmetic number, because the mean of its divisors is an integer number (8916950).

Almost surely, 2^155451136 is an apocalyptic number.

155451136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

155451136 is an abundant number, since it is smaller than the sum of its proper divisors (165559064).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155451136 is an equidigital number, since it uses as much as digits as its factorization.

155451136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20984 (or 20970 counting only the distinct ones).

The product of its digits is 9000, while the sum is 31.

The square root of 155451136 is about 12468.0044914974. The cubic root of 155451136 is about 537.6891835226.

The spelling of 155451136 in words is "one hundred fifty-five million, four hundred fifty-one thousand, one hundred thirty-six".